Russia’s aircraft plants still turn out modern fighter-bombers and fighters, enough to partly cover its losses, Ukraine’s military intelligence agency HUR told Ukrainian news agency UNIAN, which published the reply on 23 October. Its older bombers are a different story. Russia has no serial production of new Tu-95s, Tu-22M3s, or Su-24s and keeps them flying through repairs and upgrades, so each one lost for good leaves a lasting gap, HUR said.

Ukraine’s Navy said its Neptune missiles hit six Su-34M bombers at Borisoglebsk airbase in Russia’s Voronezh Oblast overnight into 15 October. Zelenskyy later said four were destroyed and two damaged. The Su-34 is one of the jets that drop Russia’s glide bombs, heavy bombs fitted with wing-and-guidance kits, on Ukrainian positions and towns.

How fast Russia replaces its jets

Russia can probably deliver 10–15 Su-34s a year now, HUR estimated. Deliveries grew from eight in 2022 to 11 in 2023 and 12–14 in 2024. But the agency said that trend does not confirm the same pace today.

For the Su-35S fighter, HUR pointed to an average of about 11–12 a year in 2021–2025. It called that a rough benchmark, not an established 2026 output. Su-30SM2 and Su-57 production continues, but reliable rates cannot be determined. Su-30 figures also mix new builds with upgrades of older Su-30SMs, HUR noted.

What Russia had, and what it lost or saw badly damaged in 2026

By the end of 2025, Russia had about 125 Su-34 and Su-34M bombers, which HUR counts together. It also had 140–145 Su-30 jets of various versions, 135–140 Su-35S, and about 20 Su-57s, HUR estimated. These are only fleet estimates, not a guaranteed number of jets Russia can send on combat missions at the same time, the agency cautioned. Some are under repair or upgrade, and HUR is not disclosing the current fleet size.

HUR also named specific 2026 cases of Russian aircraft destroyed or critically damaged. A Tu-22M3 crashed in Irkutsk Oblast on 15 June. Strikes on Engels airbase on 17 July and 28 August hit two Tu-95MS. The first suffered critical damage to its tail section, and HUR treats the second as a probable irrecoverable loss.

The list also includes a Su-35 that Ukraine’s military says it shot down on 8 July, a claim backed by published materials showing debris. It adds a Su-57 crash in Moscow Oblast on 23 July and a collision of two Su-35S over Kursk Oblast on 7 September. Full official details on those two incidents are still missing, HUR noted. Strikes on several Su-57s and a Su-34 at Shagol airbase on 25 April, and on a Su-24 in Crimea on 7 September, were also reported, but the state of those jets is unknown, so counting them as destroyed would be premature, HUR said. The list, as published, leaves out the Su-34s at Borisoglebsk and the Tu-95MS that Russia’s defense ministry said crashed on takeoff in Amur Oblast in late September.

Ukraine’s Navy hit six Su-34M bombers at Russia’s Borisoglebsk military airfield in Voronezh Oblast with Neptune missiles overnight into 15 October, the Navy said. Residents filmed a large fire at the base after a missile alert, and the Navy’s count has not been independently confirmed. The facility is about 400 km from the frontline.

Glide bombs are now central to how Russia’s army fights, used to pin down Ukrainian defenders, including drone teams, before small infantry groups move in. They also hit frontline cities and the civilians who live in them.

Six bombers and flight equipment hit, the Navy says

The Neptune coastal missile system also hit technical equipment that supports flights, the Navy said. It recorded secondary detonations and a fire on the airfield and said details were still being clarified.

The Su-34M can carry several guided and high-explosive aerial bombs at once, along with missiles, the Navy noted. It called the jet one of Russia’s key tools for glide-bomb strikes on Ukrainian positions and frontline towns. In September, a Ukrainian Neptune missile reached a Russian warship at its own pier.

Fire over the airfield late on 14 October

Voronezh Oblast Governor Aleksandr Gusev declared a missile alert across the region shortly before 22:00 local time on 14 October. Within an hour, Ukrainian monitoring channel Exilenova+ reported explosions and a fire, preliminarily at the Borisoglebsk airfield. It later wrote that the airfield had come under missile attack and a fire was burning there. Ukrainian monitoring channel Supernova+ posted footage from the town showing the blaze.

On the morning of 15 October, Gusev claimed that 33 drones and several jet-powered aerial targets had been downed over the oblast overnight. He did not mention the airfield.

A base Ukraine has hit before

The airfield hosts the 783rd training aviation center and units of the 105th composite aviation division of Russia’s Aerospace Forces, which flies Su-34, Su-35S, and Su-30SM jets, Ukrainian defense outlet Militarnyi reported. In summer 2026, it had no permanently based combat jets, and Russia used it mainly as a stopover to refuel and rearm aircraft striking Ukraine, the outlet said, citing satellite observation.

Ukrainian drones hit the airfield overnight on 8 July, starting a fire, and satellite images later showed its fuel and lubricants depot destroyed. Drones also attacked the base’s pilot training center in July 2025.

The same night, Ryazan Oblast Governor Pavel Malkov reported a fire at an oil refinery in Ryazan. It came as Ukrainian President Volodymyr Zelenskyy said Ukraine was resuming strikes on Russian refineries.

Update: Satellite imagery confirms the strike

New satellite images show damage at Borisoglebsk airbase and six Su-34 bombers positioned in the affected area two days earlier, although the extent of the aircraft losses remains unconfirmed.

The monitoring channel Exilenova+ reports that 4 airframes were completely destroyed, while 2 others sustained significant damage.